Cutter-head.



F. K. SON-DERGARD.

UUTTER HEAD.

APPLICATION FILED 11911.25, 1908.

972,479, I Patented 001. 11,1910.

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. STATES ATENT OFFICE.

CUTTER-HEAD.

To all whom it may concern:

Be it known that I, FREDERIK KRISTIAN SONDERGARD, a subject of the Kingof Denmark, of Westholme, British Columbia, Canada, have invented a newand useful Improvement in Cutter-Heads, of which the following is afull, clear, and exact description, reference being had to theaccompanying drawings, making part of this specification.

This invention relates to improvements in cutter heads, particularlywith relation to supporting devices for attachment to and to projectradially from a cutter head and carry cutter knives or bits at theirouter ends so as to cause such knives or bits to be disposed fartherfrom the center of the cutter head than they would be if attacheddirectly to the cutter head, whereby the knives or bits are spaced fromthe cutter head and caused to lie approximately parallel to their planeof movement with the result that they operate on the work at a slighterangle to the grain of the work than would be the case if they wereattached directly to the sides of the cutter head.

My invention consists in the construction, combination and arrangementof devices hereinafter shown and described.

In the accompanying drawings :Figure l is partly an elevation and partlya sectional view of a cutter head provided with bits and bit supportsconstructed in accordance with my invention. Fig. 2 is a side elevationof the same. Fig. 3 is a detail perspective view of one of the bits orknives.

The cutter head 1 is rectangular in form, of the usual construction, andis provided in its longitudinal side 'with longitudinal grooves 2 whichhave overhanging side flanges 3.

It is the object of my invention to provide supports which whileconnecting the bits and knives to the cutter head serve to space themtherefrom and materially increase the distance between them and thecenter of the cutter head so that the width of the angle between theknives and the plane of the work is materially reduced and Specificationof Letters Patent.

Application filed November 25, 1908.

Patented Oct. 11, 1910.

Serial No. 464,346.

said knives are caused to lie substantially parallel to the plane ofrevolution of the cutter head.

In accordance with my invention, I provide a pair or other suitablenumber of sup ports 4: to extend radially from the cutter head at thecorners or angles between the longitudinal sides thereof. Each of saidsupports has at its base a pair of feet 5 which are arranged obliquelywith reference to the support and at right angles to each other and bearupon two contiguous longitudinal sides of the cutter head and areprovided with slots 6. The bolts 7 which secure the said supports to thecutter head extend through said slots, the heads 8 of said bolts restingin the grooves 2 and the nuts 9 bearing on the outer side of said feet.The knives, bits or cutters l0 bear on the outer ends of said supports 4and are provided with slots 11 to receive the bolts 12 which areemployed to adjustably secure said cutters on said supports. The cuttershere shown are of the shape employed for making the troughs or channelsin Wooden gutters. The said knives or cutters may be of any othersuitable shape and may be of any suitable size, as will be understood,according to the nature of the work.

What I claim is In combination with a cutter head of po lygonal from, asupport projecting radially therefrom at a corner or angle between twocontiguous longitudinal sides thereof, the said support having divergingfeet at its inner end, the inner faces of which are flat and bear on andare secured to said contiguous sides of the cutter head, and a bitadjustably secured to the outer end of said support and spaced therebyfrom the cutter hea p In testimony whereof I have set my hand this 14thday of September A. D. 1908, in the presence of two attesting witnesses.

FREDERIK KRI STIAN SON DERGARD.

Witnesses:

LAMBERT R. JONES, COLIN MoDoUcALL.

